#include<stdio.h>
int str_len(char* att)
{
	if (*att != '\0')
	{
		return 1 + str_len(att + 1);
	}
	else
		return 0;
}
int main()
{
	char arr[] = "RUSH B";
	int re = 0;
	re = str_len(arr);
	printf("%d", re);
	return 0;
}
